Coil-forming machine.



'UNITED srArns retratar ernten.

WILLIAM D. POMEROY, OF NORWOOD, OHIO, ASSIGNOR TO LLIS-OHALMERS COMPANY,

A CORPORATION OF NEW JERSEY, AND THE BULLOCKELEOTRIC MANUFACTURING COMPANY, A CORPORATION OE IOHIO.

COIL-FORMING MACHINE.

Specicati'on of Letters Patent.

:Patent-.eu oct. 19,1909.

Application filed December 31, 1906. Serial No. 350,254. l

g To 'all whom it muy concern:

Norwood, inthe county'ot Hamilton and a State of Ohio, have invented certain new and useful lmprovements in Coil-Forming Machines, of which the ollowing is a full,l

clear, and exact specification. v

My intention relates 4to coil-forrning machines.

In building some types of dynamo-electric machines, it. is necessary to have coils the opposite sides of which are not in parallel lanes, e. g.,'coils in the shape of av wedge. j15:

L uch coils may also be necessary for other purposes. My present invention has for its -fobject to provide a machine in which such coils may be formed, the distance between two opposite sides of the coil being varied as each turn of the coil is formed while the distance between the other two opposite sides remains constant.`

lVith this object in view my invention in one of its aspects comprises the combination in ,alcoil-forming machine, of coil-forming supports, and .means for varying `'Lne relative position of said supports as a coil 1s wound to form a. wedge-shaped coil.

In another aspectmy invention comprises the combination of a. rotatable frame. sup-y ports upon said frame, and means for automatically moving said supports toward or from each other upon rotation of the frame.

In a more specific aspect. my invention comprises the combination in a coil-forming machine, of aI rotatable table, two carriages upon said table, two bending blocks on each carriage, andY means operated upon the rota tion of the table for moring said carriages relatively to eachother. .v

Many other features of my invention will appear from the following descriptionand accompanying drawings and will be-particularly set forth in the claims.

In the drawings Figure 1 is an insometric view' showing my coilformingA `machine as 'a whole; and Fig. 2 is a similar view showing:

a iinished coil,

Referring now tothe draw1ngs, 10 1s an electric motor or other source ot power arranged to rotate the frame or table 11, as by means of friction cones or beveled gearing 12. The table 11 is here shown horizontal and resting upon a stationary support or bearing 13. This table is provided with ways 14 and 15 in which are slidable the car.- riages 1 6 and'17. The two carriages are provided with bushings 18 and 19 respectively., these bushings being threaded internally and meshing with the right and left handed screw-threads 20 and 21 on the operating screw or 4shaft 22. The shaft 22 is also provided with a thrust colla-r 23 'engaging thrust blocks 24 and 25 on the table 11. By rotating the shaft 22 the carriages 16 and 17 may be made to approach yor recede from each other. v Y y i Adjustably mounted on the carriages 16 and 17 are coil-forming supports or bending blocks26, 27, 28 and 29, around which the wire ribbon or other material'SO may be bent by special bending` leversor in any other desired way to form the desired coil, as 31. As the table 11 is rotated in a. clockwise direc- .tion byY motor 10 the wire 30 is unwound from a reel or its equivalent and bent around the coil-forming supports 26 to 2S) inclusive.

VBy mechanism to be, explained, at each rotation of .the table 11 the carriages 16 and 17 are advanced toward'each other a predetermined distance, thus diminishing the distance between the sides 31al and 311 of the coil at cach successive rotation and making the coil in the shape of a wedge.

On one end of the shaft 22 is mounted a notched. wheel 32, here shown as having twelve teeth. The notched wheel 32 is jarranged to pass through a channel 33 as tie table 11 is rotated. The sides of this ch nnel are provided with holes 311 in which may be placed removable pins or teeth 35, with which the teeth o't` the star wheel 32 engage. Any other .form of rack may be used if desired.

As the Atable 11 is driven in a clockwise direction by the motor 10 the star wheel 32 engages with those pins or teeth `35 which l the pitch of the screw threads 2O and 21 is eight per inch, the carriages 16 and 17 are caused to approach each 'other one fourth of an inch for each complete rotation of the 5 notched Wheel 32 or one forty-eighth of an inch for each twelfth of a rotation such as is caused by each of the pins or teeth 35. This movement of the carriages 16 and 17 preferably takes place during the movement of the table 11 through one quadrant only, as shown, though if desired it may take place part in morethan one quadrant, e. g., in each of two opposite quadrants. By thus moving the carriages toward each other at each rotation of the table 11, each turn of the coil 31 is smaller'in one dimension by a predetermined amount than the turn preceding it, the'larger turns which have been completed dropping down upon the carriages 1t) and 17 out of the Way of the smaller ones which are being Wound. Thus Wedge-shaped'coils are formed. By varying the number of pins 35, different "amounts of movement of the carriages 16 and 17 may be obtained. Still further variations of this movenient may be obtained by having star Wheels `of different number of teeth and by substituting operating shafts 22 having screiv threads of different pitches. IIVith comparatively few star Wheels and shafts almost any desired adjustment may be obtained.

1f desired the shaft 22 may be operated manually in any -amount desired instead of being operated automatically upon rotation of the table 11.

-Many modifications may be made in the precise arrangements here shown and described and'all of these which come Within the spirit and scope of my invention I aim to cover in the claims.

IVhat I claim as new and desire to secure by Letters Patent is 1. In combination, a rotatable frameE s' ports upon said frame, and means for matically moving said supports tow from each other upon rotation-of the iframe.

2. In combination, a rotatable fran-ie, supports upon said frame., means for moving said supports relatively to the frame, and an automatiodevice for operating said moving means.

3. In combination, a rotatable frame. sup- 'ports upon'said frame7 means for moving said supports relatively to each other, and means whereby said moving means is automatically operated a predetermined amount upon each rotation of the frame.

4. In'combination, a rotatable frame, supports upon said frame, means for moving said supports relatively to each-other, and means'ivhereby said moving means is automatically operated a predetermined amount upon each rotation of the frame through a predetermined angle.

5. In combination, a rotatable frame, extensions from said frame, means for moving said extensions rela-tively to each other. and mechanism for automatically operating said moving means during part of the rotation of the frame.

G. In combination, a rotatable frame, supports upon said frame, means formoving said supports relatively to the frame, and means for automatically operating said moving means step-by-step.

7. In combination, a rotatable'frame. supports upon said frame. means formoving said supports toward or from each other. and means automatically operated upon the rotation of the frame for operatingr said moving means step-by-step.

8. In combination, a rotatable frame, eX- tensions from said frame, means for moving said extensions relatively to the frame, and means intermittently operated by the rotation of the frame for operating said moving means.

9. In combination. a rotatable frame. extensions from said frame. means for moving said extensions toward or from each other. and means for automatically operating said moving means an adjustable predetermined amount upon each rotation of the frame through a predetermined angle.

..10. In conibination, a rotatable frame. extensions from said frame, means for moving said extensions relatively to each other. and means for automatically ope ating said moving means step-hystep ay variable number of steps upon each rotation of the frame through a predetermined angle.

11. In combination. a rotatable frame. sup-4 ports upon said frame. a shaft in'the frame for relatively moving said supports. a notched wheel for turning said shaft. and a pluralityY of removable teeth arranged when in place to be engaged by said notched wheel to turn the latter'.

1Q. In combination, a rotatable frame. supports upon said frame. a shaft 1n the'frame for moving said supports toward oi fromy each other. and means for autonuitically turning said shaft.

' 153. In combination. a rotatable frames-iupports upon said frame, a shaft in the frame for moving said supports toward or from -ach other. and means automatically operated upon the rotation of` the frame for turning said shaft.

la. In combination, a rotatable frame. supports upon said frame, a shaft in the frame. for moving said supports toward or from Aeach other. and means for automatically turning said shaft through an adjustable predetermined angle upon each rotation of the frame.

15. In combination, a rotatable frame. sup ports upon said frame, a shaft in the frame for moving' said supportstoward or from A cach other, and a wheel connected to said shait, said wheel being automatically turned an adiustable amount upon cach rotation ot the frame through a predetermined angle.

1G. I'n a coil-forming' i'nachinea rotatable table, two carriages upon said table. two bending blocks on each carriage. and lautomatic means for moving` said carriagesu'eh atively to each other.

17. In a coilforming' machine, a rotatable .,table, t-wo carriages upon said table. a plurality of bendingl blocks on each carriage, and means operated by the rotation ofthe table :tor moving' said-carriages relatively 'to each. other.

' 18. In a coil-formingmachine, .a rotatable table, a plurality of carriages upon .said taatively to each other upon each rotation of the table through apredetermined angle.`

20. In a. coil-forming machine, afrotatable table, two carriages upon said table, a plurality of bendingr blocks on each carriage, and automatic means for moving' said carriages relati y to each other an adjustable predetermin damount atv each rotation of the table.

21. In a coil-forming' machine,- a rotatable frame, a plurality 4of groups of bend'ng blocks upon' said frame, and automatic means for moving said groups relatively to.

one another.

In a coil-forming" machine, a rota-.table traine, a. plurality of groups of bending blocks upon said frame, and moans for auto- 4 inatically varying' step-by-step the distance between said groups.

In a coil-forming' machine, a rotatable' frame, a plurality ofv groups ot bending blocks upon said raineand means for automatically varying the distance between said groups a predetermined amountu-pon each rotation of the frame through a predetermined angle.

24. In a coil-forming' machine, a. rotatable frame. a lurality of grouis ot' bendino' l) as blocks upon said frame, and means for auto-` matically varying` the distance between the groups an adjustable predeterminedamount at each rotation. of the frame.

ln a coil-'formingl machine, a rotatable frame, two pairs of bending blocks upon said frame, and automatic means for vary ing step-by-stepl the distance 'between said pairs.

26. In a coil-forming machine, a' rotatable table, two pairs of bending blocks thereon and means for automatically 'moving' said pairs relatively to each other.

In a' coil-forming machine. a-rotatablc frame. two bending* blocks `upon said frame,

and incansfor automati 'ally varying the distance. between said blocks.

QS. In a coil-forming machine, a` rotatable traine. two bending blocks upon said frame, and means for automatically varyingthe dis- .tant-e between .said blocks during part of the rotation of the traine.

2%). 1n a coil formingr machine, a rotatable vtrame.' a plurality ot bending blocks, and

meanstor automatically varying .the distance between certain of said blocks.

.30. In a coil-forming machine, a. rotatable table, a plurality of bending blocks upon f'said table, and automatically operated means 'for .'arying the distance between said blocks upon a predetermined movement of the table.

3l. In a coil-forming` machine, a rotatable table, aplurality of bending blocks thereon,

i and automatic means for moving said blocks toward or li'rom each other an adji'istable predetermined amount uponveach rotation of the table.

' 32. In a coil-forming machine, a rotatable frame, two bendingblocks upon said frame, a th readed-shaft for varying; the distance between said blocks, 'a notched wheel connected vto said shaft, and a `plurality of separately removable teeth arranged to be vengaged by said notched wheel to turn it as the frameis rotated. i y

33,' In combination, a shaft rotatable about longitudinal and transverse axes, means ior rotating it about the transverse axis. a toothed wheel connected to .said shat't` and teeth arranged to be engaged by said toothed whee'hduring each complete rotation of the sha-ft.

3-i.- In Acombination,` a rotatable frame. supports upon said frame, and automatic means for progressively moving said slipports relatively to each other. A

3 5. In coinbinatiom a rotatable frame. supports upon said frame, and automatic 'means tor intermittently advancing said supports towardv each other'iis the frame is rotated. 36. In a coil`orniing machine, coil-fond ing supports, and automatic means for varyin e the .distance between said supports.

8751i] a coil-forming machine, coil-forining supports, and means for automatically varying the distance between said supports yaiter each turn of the coil is made.

3S. In' a coileforming machine, coil-forining supports. and. automatic means for so 'varying the relative position of'said supports as a coil'is wound' thereon Athat the coil is wedgeshaped.

39. Ina coil-forming machine,`coil-orm mg supports, and automatic means for varying the distance between some of said blocks :xs each turn of the coil is formed While leaving 1111- dsmn -e bouwen ohors of Said Sup-v ports Constant.

40. 'u combuznon, u1 rotatable frame, two sets of sopporta thefeou, and means for :Lutomatcully varying the dists-111Go between said two sels of supports us the frame s rotated.

Tn testimony whereof I ax my signature, m the presence of two wltnesses. v

WILLIAM D. POMEROY.

ituesos Guo. B. Scnnmsh; FRED J. KINSmif. 

